JPS5892063U

JPS5892063U - Sensor case mounting structure

Info

Publication number: JPS5892063U
Application number: JP18760581U
Authority: JP
Inventors: 孝一竹田; 小平　勝昭
Original assignee: 富士通株式会社
Priority date: 1981-12-16
Filing date: 1981-12-16
Publication date: 1983-06-22
Also published as: JPH0110218Y2

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

図面は本考案に係るセンサケース取り付は構造の実施例
を示すもので、第１図は本考案を適用したサーマルプリ
ンタの斜視図、第２図は記録紙存在検出用フォトセンサ
ユニット取り付は要領を示す側面図、第３図は歯車伝達
機構の詳細および印字タイミング検出用フォトセンサユ
ニット取り付は要領を示す平面図、第４図および第５図
はフォトセンサユニットをそれぞれ両端面側から見た斜
視図、第６図は反射型フォトセンサの斜視図、第７図は
筐体の印字タイミング検出用フォトセンサユニット取り
付は部付近の側面図である。図中、１はサーマルプリンタ、２は筐体、２ａ。２ｂは側板、２Ｃは底板、３は記録紙ガイド板、６は歯
車伝達機構、７はフォトセンサユニット、８は記録紙存
在検出用穴、１０はサーマルヘッド、１１は紙送りロー
ラ、１２，１３，１４．１５は歯車、１６はモータ、１
７は駆動軸、２０は反射型フォトセンサ、２１はセンサ
ケース、２１ａ−２１ｂは端面、２７はスリット、２８
はリベット固定用穴、２９はフランジ、３０はリベット
、３１はリベット挿入用穴、３２は位置検出板、３３は
翼、３６は係合片、３７は係合部材（第２の固定部）、
３８は幅狭部、３９は段付部、４０は記録紙である。第１図。１１　　　　．４０第３図６、す＝＝コ。第４図The drawings show an example of the sensor case mounting structure according to the present invention. Fig. 1 is a perspective view of a thermal printer to which the present invention is applied, and Fig. 2 shows an example of the mounting structure of a photo sensor unit for detecting the presence of recording paper. Figure 3 is a side view showing the details of the gear transmission mechanism and how to install the photosensor unit for detecting printing timing; Figures 4 and 5 are views of the photosensor unit as seen from both end faces. FIG. 6 is a perspective view of a reflective photosensor, and FIG. 7 is a side view of a portion of the housing in which a photosensor unit for detecting printing timing is attached. In the figure, 1 is a thermal printer, 2 is a housing, and 2a. 2b is a side plate, 2C is a bottom plate, 3 is a recording paper guide plate, 6 is a gear transmission mechanism, 7 is a photosensor unit, 8 is a hole for detecting the presence of recording paper, 10 is a thermal head, 11 is a paper feed roller, 12, 13 , 14.15 is a gear, 16 is a motor, 1
7 is a drive shaft, 20 is a reflective photosensor, 21 is a sensor case, 21a-21b is an end surface, 27 is a slit, 28
29 is a rivet fixing hole, 29 is a flange, 30 is a rivet, 31 is a rivet insertion hole, 32 is a position detection plate, 33 is a wing, 36 is an engaging piece, 37 is an engaging member (second fixing part),
38 is a narrow portion, 39 is a stepped portion, and 40 is a recording paper. Figure 1. 11. 40 Figure 3 6, S==ko. Figure 4

Claims

[Scope of utility model registration request]

A line tod type thermal head that presses against the rubber roller prints on the recording paper that is transported along a recording paper guide plate provided in the housing by a paper feed roller driven by a motor via a gear transmission mechanism, In a thermal printer that detects the presence of recording paper and printing timing using a hole provided in the recording paper guide plate and a position detection plate fixed to one of the shafts of the gear transmission mechanism, a reflective photo is installed in the sensor case. A photosensor unit housing a sensor is provided, a flange having a slit and a rivet fixing hole is formed on the end face of the photosensor exposure side and the reflective side of the sensor case, and the photosensor is housed in the housing. a first fixing part for fixing the sensor case with a rivet inserted into the rivet fixing hole so as to face the position detection plate; and a first fixing part for fixing the sensor case with a rivet inserted into the rivet fixing hole; and a second fixing part for fixing the photosensor so as to face the hole in the recording paper guide plate, so that the presence of the recording paper and the printing timing can be detected by one type of photosensor unit. The sensor case mounting structure is a feature.